%0 Journal Article
%A Yu. L. Kostyuk
%T The travelling salesman problem: improved lower bound in the branch-and-bound method
%J Prikladnaâ diskretnaâ matematika
%D 2013
%P 73-81
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/PDM_2013_4_a7/
%G ru
%F PDM_2013_4_a7